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Old 05-30-2021, 07:12 PM   #124
mikep
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Join Date: May 2003
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Quote:
Originally Posted by tintintin View Post
I had thought that lower turn counts were inherently more powerful and efficient. Is that simply because of the higher weight of copper possible in a low turn count wind?

The problem, as you state, appears to be in the ability to "gear down" the low turn count/higher rpm motor to a usable range. Not sure this is workable in a wheel motor.
I only know what I learned a long time ago, from memory. So this is going to be very vague.
In permanent magnet DC motors with roughly the same rotor winding mass, the higher winding count had higher resistance, more efficiency, lower rpm potential.
Fewer thicker windings (low resistance) have higher current, potentially higher rpm and power, and the iron core/armature frame has an effect.
Each variation and application has different brush timing requirements.
I know almost nothing about brushless, except they are AC instead of DC.
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